condition	mean	min	max
4 h after light	975.492056	965.858817	985.125295
8 h after light	977.2260905	897.989355	1056.462826
12 h after light	1145.63437	1054.37043	1236.89831
4 h after dark	1157.794507	1075.724809	1239.864205
8 h after dark	1065.7850045	986.987764	1144.582245
12 h after dark	978.238652	978.238652	978.238652